Ten Tec Argon I rather like the sound of that. Perhaps a future QRP rig name. You heard it on the Ten Tec list first :-) -- Kevin Purcell kevinpurcell@pobox.com ______________________________________
Are you sure you actually need to modify the ring mixer diodes? When I got around to looking at one of my (now two) 525D's I noticed there are a few differences even in the same model run. I've been
Once you have two you can compare them. :-) My 525D serial 01611 has a front panel (below the meter) that looks like the analogue Argosy. The name plate says "TenTec Argosy". Like this: <http://www.r
Looking for the 8 pole 2.4kHzwide 9.015MHz #220 filter for an Argosy 525D. Reply to me off the list. -- N7WIM / G8UDP Kevin Purcell kevinpurcell@pobox.com ____________________________________________
Another difference between the 525D and the 525 is the low/high power switching. In the analogue 525 the switch takes the PA out of the system -- the driver drives to LP filters. In the digital 525 t
My point was that you aren't going to get a better match from 4 HP separate diodes (which may or may not come from the same batch) than the integrated ring so that mod is not worthwhile Do you agree?
Is it intelligible (but just pitch shifted) or unintelligible? Does the pitch change with USB or LSB on the same band? I would guess it's one of: HF getting into the audio; SSB 9MHz leakage in the RF
This is a very good point. I think it's mentioned in the manual too! On my Argosy in a high RF environment (multiple TV TXs within 1 mile) you can hear the 60Hz frame buzz with volume just off zero w
So that was K3 not K2 versus Orion (sounds like a boxing match). The K3 has a much "bigger" UI than the K2. <http://www.elecraft.com/K3/K3_640_v2.jpg> <http://www.elecraft.com/K3/K3_big_v2.jpg> This
Wow! I didn't think anyone was going to reply. Not quite enough to start our own Argosy email list then :-) And you have a pair of 1496's too. For the rest of you with Argosy's (particularly the Argo
This is rather odd. The K2 and K3 displays are rather different. The K2 display was/is a simple 7 segment LCDs with a handful of slightly cheesey chevrons for indicating features along with a couple
Do you know what the software revision is? If you take the lid off it will be on the EPROM label? Or conversely when was this 320 made? Thanks, Kevin N7WIM -- Kevin Purcell kevinpurcell@pobox.com ___
ARRL reviewed of the first version Ten-Tec Argosy serial number 525 00026 in October 1982. <http://www2.arrl.org/members-only/prodrev/pdf/pr8210.pdf> This is the original version of the Argosy that u
When did Ten-tec switch to Schottky diode ring mixers? If you have a Corsair or Corsair II you can help by looking at the schematic in the manual for the RX mixer in your TT rig. Let me know the diod
Excellent. Thanks Steve for that data point. And Don, NN8B, who replied too. Both have the Corsair 2. So they had switched by 1986. Anyone with an original Corsair (Corsair 1, so to speak)? I think t
I know that feeling! Another question: Is it still a MOSFET (like the Omni C) or did they make the change to a higher emitter current BJT such as the 2N3886 (like the Argosy 1 second revision) or 2N5
We have a winner! Actually three winners George K3GP, Duane, N9DG and Don, NN8B. Yes, the MBD-101 is a discrete schottky diode. So the Cosair was the first Ten-tec radio to use a schottky diode ring
I suspected that might be the case. So the MOSFET RF amp (with 5mA Ids) finished with the Omni design. Not too sure why. A MOSFET RF preamp with decent drain current/ correct biasing can have interce
Is the behavior the same on the Cosair 1? This is an interesting (if odd) result. Especially as it is an important issue for comparing IMD DR and other numbers (which is what I'm doing). Sherwood (et
It could be just a configuration issue. Or it could be a kernel regression ... <http://blog.aa6e.net/2007/03/among-kernel-developers.html> -- Kevin Purcell kevinpurcell@pobox.com ____________________